Katao is located in North Sikkim (India) and is about 144 kilometers from Gangtok. Katao Valley is perched at an elevation of almost 15000 and is far from the center of Sikkim. With the mesmerizing view of snow topped peaks of the Himalayas, it is an opponent to the much looked for after Yumthang in beauty.The trek to Katao is not in the standard bundles of North Sikkim or Lachung visit. Visitor needs to visit the spot at a supplement cost. One needs to stay at Lachung on the earlier night. The next morning Yumthang Valley and Katao can be reached but a stay at Lachung is essential. Foundation is poor because of the zone's remoteness. Voter ID card/Driving License/Similar ID card is needed along with 4 passport size photo for applying for permit. It is recommended to visit in groups, by which you will manage to hire a tour operator easily.